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Question on wood movement (twisting)

1K views 4 replies 4 participants last post by  ChasHutch 
#1 · (Edited by Moderator)
I was hoping someone could help me with this question:

I purchased some S2S 1" by ~8' red oak from my local hardwood store about two months ago. From reading LJ's and in magazine articles, I have learned that wood needs time to acclimate to my shop environment. I let the wood site in the shop ~7 weeks. This past weekend, I cut 14" off to make some 3/4" square slats. I dimensioned the 14"x6" piece to get it square with the jointer and surface planer. I cut the slats the next day.

My Question: After two days the slats are no longer perfectly square. They seem to have twisted a bit. It was properly dimensioned prior to ripping.

What did I do wrong and how do I avoid this in the furute? Was there moisture in the middle of the board?

I live in near Dallas, TX. The temprature has been above 90 with not too much rain. My shop is NOT temprature controlled but stays dry and the humidity has mostly been between 60 and 80%.

Any help would be apreciated.
 
#2 ·
once you start milling wood you need to get it cut to size and assembled as quickly as possible or else you risk your wood moving again. some tricks are to sticker your wood with a heavy weight on top and see if it will straight out or leave it in the sun and some times that will take the warp out, just use it really fast before it cups again.hope this helps.
 
#4 ·
There are a few things I learned when milling lumber, Try to take off of both sides as evenly as possible. And once milled, if you're not going to use it right away, store it properly by either stickering it (and weighing it down) or I know a few people that wrap the wood with seran(spelling?) wrap.
 
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